The missing paper trail for British spy ships

Public searches produce little evidence for dedicated British electronic-intelligence ships during the interwar period or Cold War. That absence is treated as a research problem, rather than proof that the Royal Navy never used merchant or auxiliary vessels for the role. Britain had a global merchant marine, routinely fitted listening equipment to warships, and trained Commonwealth navies that later operated specialized vessels. For roughly twenty years, Admiralty staff work and naval intelligence substantially overlapped, which makes a complete British institutional blind spot harder to accept. USS Gold Star's radio-listening work offers an American comparison, though it cannot establish that a British counterpart existed. The British inference remains unproven until an archival record identifies a ship or program. This comparison separates a plausible institutional pattern from a demonstrated historical claim.